Class 11 · Body Fluids and Circulation

ECG Waves and Heart's Electrical Activity — NEET Biology

🔥 Predicted for NEET 2027
📖 NCERT Source

Each peak in the ECG is identified with a letter from P to T that corresponds to a specific electrical activity of the heart.

🖼️Related NCERT figure: Diagrammatic representation of a standard ECG showing the characteristic waves labeled P, Q, R, S, and T plotted against time (Figure 15.3 Diagrammatic presentation of a standard ECG)
NCERT Biology · Class 11 · Chapter 15 · Paragraph 28
Why This May Be Tested in NEET 2027

Adjacent to a frequently-asked paragraph in the same chapter.

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QuestionPredicted for NEET 2027

Which is NOT part of standard ECG trace?

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